v2.4.0: fixed createMobs discarding mobs it can't immediately place

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/levels/RegularLevel.java

@@ -236,8 +236,9 @@ public abstract class RegularLevel extends Level {
 		ShadowCaster.castShadow(c.x, c.y, width(), entranceFOV, losBlocking, 6);
 		PathFinder.buildDistanceMap(entrance(), BArray.not(solid, null), 8);
 
+		Mob mob = null;
 		while (mobsToSpawn > 0) {
-			Mob mob = createMob();
+			if (mob == null) mob = createMob();
 			Room roomToSpawn;
 			
 			if (!stdRoomIter.hasNext()) {
@@ -261,6 +262,7 @@ public abstract class RegularLevel extends Level {
 			if (tries >= 0) {
 				mobsToSpawn--;
 				mobs.add(mob);
+				mob = null;
 
 				//chance to add a second mob to this room, except on floor 1
 				if (Dungeon.depth > 1 && mobsToSpawn > 0 && Random.Int(4) == 0){
@@ -282,6 +284,7 @@ public abstract class RegularLevel extends Level {
 					if (tries >= 0) {
 						mobsToSpawn--;
 						mobs.add(mob);
+						mob = null;
 					}
 				}
 			}